linux-kernel - [PATCH v2 1/2] mm:zpool: constify struct zpool type

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Date:	Fri, 11 Sep 2015 21:18:36 +0900
From:	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Seth Jennings <sjennings@...iantweb.net>,
	Dan Streetman <ddstreet@...e.org>,
	Minchan Kim <minchan@...nel.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
	Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Subject: [PATCH v2 1/2] mm:zpool: constify struct zpool type

Constify `struct zpool' ->type.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@...il.com>
---
 include/linux/zpool.h | 6 +++---
 mm/zpool.c            | 8 ++++----
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/include/linux/zpool.h b/include/linux/zpool.h
index c924a28..0ef5581 100644
--- a/include/linux/zpool.h
+++ b/include/linux/zpool.h
@@ -36,10 +36,10 @@ enum zpool_mapmode {
 	ZPOOL_MM_DEFAULT = ZPOOL_MM_RW
 };
 
-struct zpool *zpool_create_pool(char *type, char *name,
+struct zpool *zpool_create_pool(const char *type, char *name,
 			gfp_t gfp, const struct zpool_ops *ops);
 
-char *zpool_get_type(struct zpool *pool);
+const char *zpool_get_type(struct zpool *pool);
 
 void zpool_destroy_pool(struct zpool *pool);
 
@@ -76,7 +76,7 @@ u64 zpool_get_total_size(struct zpool *pool);
  * with zpool.
  */
 struct zpool_driver {
-	char *type;
+	const char *type;
 	struct module *owner;
 	atomic_t refcount;
 	struct list_head list;
diff --git a/mm/zpool.c b/mm/zpool.c
index 68d2dd8..e83fce7 100644
--- a/mm/zpool.c
+++ b/mm/zpool.c
@@ -18,7 +18,7 @@
 #include <linux/zpool.h>
 
 struct zpool {
-	char *type;
+	const char *type;
 
 	struct zpool_driver *driver;
 	void *pool;
@@ -73,7 +73,7 @@ int zpool_unregister_driver(struct zpool_driver *driver)
 }
 EXPORT_SYMBOL(zpool_unregister_driver);
 
-static struct zpool_driver *zpool_get_driver(char *type)
+static struct zpool_driver *zpool_get_driver(const char *type)
 {
 	struct zpool_driver *driver;
 
@@ -114,7 +114,7 @@ static void zpool_put_driver(struct zpool_driver *driver)
  *
  * Returns: New zpool on success, NULL on failure.
  */
-struct zpool *zpool_create_pool(char *type, char *name, gfp_t gfp,
+struct zpool *zpool_create_pool(const char *type, char *name, gfp_t gfp,
 		const struct zpool_ops *ops)
 {
 	struct zpool_driver *driver;
@@ -195,7 +195,7 @@ void zpool_destroy_pool(struct zpool *zpool)
  *
  * Returns: The type of zpool.
  */
-char *zpool_get_type(struct zpool *zpool)
+const char *zpool_get_type(struct zpool *zpool)
 {
 	return zpool->type;
 }
-- 
2.5.1

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